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Detection of wet zones within a hydro-power plant's canal using SAR and GPR data
Gleich, Dušan
This paper presents the monitoring of wet zones within a hydro-power plantćs canal using Synthetic Aperture Radar (SAR) and Ground Penetrating radar (GPR) data. SAR based monitoring considers soil ...moisture estimation and moisture detection using Fourier descriptors, whilst GPR based automatic data interpretation uses Fourier descriptors for detecting potential wet-zones within the canal. The second and fourth order spectral moments, cepstrum, spectral entropy and centroid were used for detecting potential wet-areas using SAR and GPR data. The experimental results showed that SAR data can be used for detecting water leakages when the surface is already wet, meanwhile GPR data can be used for determining water-leakage location inside the canal. GPR measurements were taken on the top of the canal, as well as at its sides. The acquired data were analyzed using Fourier descriptors. The Fourier descriptors showed a good detection performance for potential wet areas withinSAR and GPR data.
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